Dong‐Kyun Seo
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View article: Simple Linear Equations to Estimate a Workload of Specific Repetition Maximum for Squat Exercise in Trained and Untrained Males
Simple Linear Equations to Estimate a Workload of Specific Repetition Maximum for Squat Exercise in Trained and Untrained Males Open
PURPOSE: This study developed simple linear equations that predict a workload relative to body weight for specific repetition maximums (RMs) in squat exercises in trained and untrained males.METHODS: Eighteen trained (22.7±0.9 years, 175.4…
View article: Nickel Supported Over Hierarchical Zeolite 13X Catalysts for Enhanced Conversion of Carbon Dioxide Into Methane
Nickel Supported Over Hierarchical Zeolite 13X Catalysts for Enhanced Conversion of Carbon Dioxide Into Methane Open
Catalytic conversion of carbon dioxide (CO 2 ) into useful chemicals such as methane (CH 4 ) is a promising carbon utilization method that effectively mitigates CO 2 and partially meets energy needs. The characteristics of commonly used ni…
View article: Perturbational Analysis of Magnetic Force Theorem for Magnetic Exchange Interactions in Molecules and Solids
Perturbational Analysis of Magnetic Force Theorem for Magnetic Exchange Interactions in Molecules and Solids Open
There have been increasing efforts to compute magnetic exchange coupling constants for transition metal complexes and magnetic insulators using the magnetic force theorem and Green’s function-based linear response methods. These were origi…
View article: FACILE SYNTHESIS OF ORGANOSILOXANE-MODIFIED HYDROPHOBIC GEOPOLYMER THROUGH PEPTIZATION OF POLYDIMETHYLSILOXANE
FACILE SYNTHESIS OF ORGANOSILOXANE-MODIFIED HYDROPHOBIC GEOPOLYMER THROUGH PEPTIZATION OF POLYDIMETHYLSILOXANE Open
We report a scalable, facile synthetic process for hydrophobic geopolymer containing organosilane. Using polydimethylsiloxane (PDMS) as an organic precursor, the surface of sodium and potassium geopolymers of varying precursor composition …
View article: Fabricating porous materials using interpenetrating inorganic-organic composite gels
Fabricating porous materials using interpenetrating inorganic-organic composite gels Open
Porous materials are fabricated using interpenetrating inorganic-organic composite gels. A mixture or precursor solution including an inorganic gel precursor, an organic polymer gel precursor, and a solvent is treated to form an inorganic …
View article: Geopolymer resin materials, geopolymer materials, and materials produced thereby
Geopolymer resin materials, geopolymer materials, and materials produced thereby Open
A product formed from a first material including a geopolymer resin material, a geopolymer resin, or a combination thereof by contacting the first material with a fluid and removing at least some of the fluid to yield a product. The first …
View article: Multifunctional materials and composites
Multifunctional materials and composites Open
Forming multifunctional materials and composites thereof includes contacting a first material having a plurality of oxygen-containing functional groups with a chalcogenide compound, and initiating a chemical reaction between the first mate…
View article: Metal oxides from acidic solutions
Metal oxides from acidic solutions Open
Forming a metal oxide by treating an acidic solution containing a metal to yield a precursor in the form of a semi-liquid, semi-solid or solid, and treating the precursor to yield a product including the metal oxide. An organic or inorgani…
View article: Modified aluminosilicates display antibacterial activity against nontuberculous mycobacteria and adsorb mycolactone and Mycobacterium ulcerans in vitro
Modified aluminosilicates display antibacterial activity against nontuberculous mycobacteria and adsorb mycolactone and Mycobacterium ulcerans in vitro Open
Mycobacterium ulcerans (MU) infection of skin and soft tissue leads to chronic skin ulceration known as Buruli ulcer. MU releases a lipid-like toxin, mycolactone, that diffuses into the tissue, effecting disease through localized tissue ne…
View article: Editorial: Geopolymer and Alkali Activated Materials Chemistry, Structure, and Properties
Editorial: Geopolymer and Alkali Activated Materials Chemistry, Structure, and Properties Open
EDITORIAL article Front. Chem., 08 June 2022Sec. Solid State Chemistry https://doi.org/10.3389/fchem.2022.929163
View article: Synthesis and Characterization of Dispersible Geopolymer Nanoaggregates
Synthesis and Characterization of Dispersible Geopolymer Nanoaggregates Open
We present a simple synthetic route to submicron-sized both potassium- and sodium-based geopolymer nanoaggregates whose nanostructure is suitable for applications in polymer composites. The new synthetic method is based on the chemical mec…
View article: Photoelectrochemical Water Oxidation by Cobalt Cytochrome C Integrated-ATO Photoanode
Photoelectrochemical Water Oxidation by Cobalt Cytochrome C Integrated-ATO Photoanode Open
Here, we report the immobilization of Co-protoporphyrin IX (Co-PPIX) substituted cytochrome c (Co-cyt c) on Antimony-doped Tin Oxide (ATO) as a catalyst for photoelectrochemical oxidation of water. Under visible light irradiation (λ > 450 …
View article: Cooperative formation of porous silica and peptides on the prebiotic Earth
Cooperative formation of porous silica and peptides on the prebiotic Earth Open
Significance Although catalysis by mineral surfaces has been considered to be important in prebiotic chemistry, the role of porous silica phases, with reactions taking place within specific confined environments, has not been explored. Thi…
View article: Selective oxidation of <i>n</i>-buthanol to butyraldehyde over MnCo<sub>2</sub>O<sub>4</sub> spinel oxides
Selective oxidation of <i>n</i>-buthanol to butyraldehyde over MnCo<sub>2</sub>O<sub>4</sub> spinel oxides Open
Partial oxidation of n-butanol to butyraldehyde, propionaldehyde and acetaldehyde over MnCo2O4 spinel oxides has been investigated.
View article: Molybdenum Dopped Copper Ferrites as Active Catalysts for Alcohols Oxidative Coupling
Molybdenum Dopped Copper Ferrites as Active Catalysts for Alcohols Oxidative Coupling Open
Copper ferrites dopped with molybdenum were studied in an oxidative coupling reaction between methanol and ethanol in the gas phase. The catalysts have been characterized by X-ray diffraction, where the presence of ferrite, magnetite, and …
View article: Thickness-Dependent Bioelectrochemical and Energy Applications of Thickness-Controlled Meso-Macroporous Antimony-Doped Tin Oxide
Thickness-Dependent Bioelectrochemical and Energy Applications of Thickness-Controlled Meso-Macroporous Antimony-Doped Tin Oxide Open
Coatings of hierarchically meso-macroporous antimony-doped tin oxide (ATO) enable interfacing adsorbed species, such as biomacromolecules, with an electronic circuit. The coating thickness is a limiting factor for the surface coverage of a…
View article: Iron oxide-modified nanoporous geopolymers for arsenic removal from ground water
Iron oxide-modified nanoporous geopolymers for arsenic removal from ground water Open
Composite materials of hierarchically porous geopolymer and amorphous hydrous ferric oxide were produced and characterized as a new potentially cost-effective arsenic adsorbent. The arsenic removal capabilities of the iron (hydr)oxide (HFO…
View article: Superior ion release properties and antibacterial efficacy of nanostructured zeolites ion-exchanged with zinc, copper, and iron
Superior ion release properties and antibacterial efficacy of nanostructured zeolites ion-exchanged with zinc, copper, and iron Open
Nanostructured zeolite X as a superior host for transition-metal ion antimicrobials with rapid ion release and killing kinetics.
View article: Enhancing Photocurrent Generation in Photosynthetic Reaction Center‐Based Photoelectrochemical Cells with Biomimetic DNA Antenna
Enhancing Photocurrent Generation in Photosynthetic Reaction Center‐Based Photoelectrochemical Cells with Biomimetic DNA Antenna Open
Three‐ to four‐times higher performance of biohybrid photoelectrochemical cells with photosynthetic reaction centers (RC) has been achieved by using a DNA‐based biomimetic antenna. Synthetic dyes Cy3 and Cy5 were chosen and strategically p…
View article: Highly Selective Solid Acid Catalyst H1−xTi2(PO4)3−x(SO4)x for Non-Oxidative Dehydrogenation of Methanol and Ethanol
Highly Selective Solid Acid Catalyst H1−xTi2(PO4)3−x(SO4)x for Non-Oxidative Dehydrogenation of Methanol and Ethanol Open
The conversion of alcohols towards aldehydes in the presence of catalysts by non-oxidative dehydrogenation requires special importance from the perspective of green chemistry. Sodium (Na) super ionic conductor (NASICON)-type hydrogen titan…
View article: Photocurrent Generation by Photosynthetic Purple Bacterial Reaction Centers Interfaced with a Porous Antimony-Doped Tin Oxide (ATO) Electrode
Photocurrent Generation by Photosynthetic Purple Bacterial Reaction Centers Interfaced with a Porous Antimony-Doped Tin Oxide (ATO) Electrode Open
The ability to exchange energy and information between biological and electronic materials is critical in the development of hybrid electronic systems in biomedicine, environmental sensing, and energy applications. While sensor technology …
View article: Unusual Changes in Electronic Band-Edge Energies of the Nanostructured Transparent n-Type Semiconductor Zr-Doped Anatase TiO<sub>2</sub> (Ti<sub>1–<i>x</i></sub>Zr<sub><i>x</i></sub>O<sub>2</sub>; <i>x</i> < 0.3)
Unusual Changes in Electronic Band-Edge Energies of the Nanostructured Transparent n-Type Semiconductor Zr-Doped Anatase TiO<sub>2</sub> (Ti<sub>1–<i>x</i></sub>Zr<sub><i>x</i></sub>O<sub>2</sub>; <i>x</i> < 0.3) Open
By the establishment of highly controllable synthetic routes, electronic band-edge energies of the n-type transparent semiconductor Zr-doped anatase TiO2 have been studied holistically for the first time up to 30 atom % Zr, employing powde…